General science- chem

• What side are metals on?

  Left
• What side are non-metals on?

  Right
• What are the three subatomic particles?

  Protons, neutrons, electrons
• How do you find out mass number? (protons + neutrons)

  Mass number - atomic number
• Positive ion-loses electrons


  Cation
• Negative ion-gains electrons

  Anion
• Why are neon and other group 18 elements considered unreactive?

  They all have full outer shells, so do not need to form ions because they are stable (unreactive).
• Why are atoms considered electrically neutral?

  They have a equal number of protons and electrons.

  Balanced number of opposite charges
• SO42-

  Sulfate
• NO3-

  Nitrate
• CO32-

  Carbonate
• OH-

  Hydroxide
• HCO3-

  Hydrogen carbonate
• NH4+

  Ammonium
• (OH)

  Hydroxide
• C2H6

  Ethane
• C4H10

  But-2-ene
• What does But-2-ene mean?

  The carbon number where the double bond is
• C4H10

  Butane
• C1H4

  Methane
• Why do some atoms form covalent bonds while others form ionic bonds?

  Ionic bonds form by ions coming together and joining by opposite charges, whereas covalent bonds form by the sharing of electrons.
• COOH

  Carboxylic acids
• Formula of carboxylic acids

  CnH2n
• What is inside the nucleus?

  Protons and neutrons
• Meth

  1
• Eth

  2
• Prop


  3
• But


  4
• Pent

  5
• Hex

  6
• Hept


  7
• Oct

  8
• What does pH measure?

  Measures ratio of H ions and OH ions in a solution.
• Highly acidic


  0-2
• Slightly acidic


  3-6
• Neutral


  7
• Slightly basic


  8-11
• Highly basic


  12-14
• What do acids release when they dissolve in water?

  Hydrogen ions
• What do bases release when they are dissolved in water?

  Hydroxide ions